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/*
* qtmaildir - a Qt6 mail client for notmuch-indexed Maildirs
* Copyright (C) 2026 Danilo M. <danix@danix.xyz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include <QAbstractTableModel>
#include <QColor>
#include <QVector>
#include "tagcolors.h"
#include "types.h"
/// Table model over query results, filled in batches so a large query paints
/// its first screenful immediately.
class ThreadListModel : public QAbstractTableModel
{
Q_OBJECT
public:
/// No tags column: spelling out a dozen tags per row cost most of the
/// list's width and was unreadable. Functional tags moved to a chip strip
/// under the message pane, and the account tag renders as a chip in front
/// of the subject.
enum Column {
/// A paperclip when the thread has an attachment, so it is visible
/// without opening the thread. Icon only and deliberately narrow;
/// it carries no text.
AttachmentColumn = 0,
DateColumn,
AuthorsColumn,
SubjectColumn,
ColumnCount,
};
enum Role {
/// The thread id behind a row. Views hand out QModelIndexes, but the
/// worker speaks thread ids, so the mapping belongs on the model
/// rather than in every caller.
ThreadIdRole = Qt::UserRole + 1,
/// The account tag on this thread without its "account-" prefix, for
/// the chip drawn in front of the subject. Empty when the thread
/// carries none.
AccountLabelRole,
/// Fill colour for that chip.
AccountColourRole,
/// Every tag on the thread, for the strip under the message pane.
TagsRole,
};
/// Row fill for a thread tagged `deleted`, and for one tagged `spam`.
/// Muted rather than saturated: a bulk delete paints every selected row,
/// and a wall of pure red is harder to read than the list it replaces.
/// Exposed so a test names the same colour the model uses.
/// The character shown in AttachmentColumn for a thread that has one.
/// A paperclip when the system font can draw it, "*" otherwise.
static QString attachmentGlyph();
static QColor deletedColour();
static QColor spamColour();
explicit ThreadListModel(QObject *parent = nullptr);
/// Supplies the account chip colours. Not owned; must outlive the model.
/// Without one, chips fall back to a colour generated from the tag name.
void setTagColors(const TagColors *colours) { m_tagColors = colours; }
int rowCount(const QModelIndex &parent = {}) const override;
int columnCount(const QModelIndex &parent = {}) const override;
QVariant data(const QModelIndex &index, int role) const override;
QVariant headerData(int section, Qt::Orientation orientation,
int role) const override;
void appendBatch(const QVector<ThreadSummary> &batch);
void clear();
ThreadSummary threadAt(int row) const;
/// Applies a tag change locally so the UI updates before the worker
/// confirms. To revert a failed write, call again with added and removed
/// swapped.
void applyTagChange(const QString &threadId, const QStringList &added,
const QStringList &removed);
private:
QVector<ThreadSummary> m_threads;
const TagColors *m_tagColors = nullptr;
};
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